340 Build Advice
I have a stock crank 340 build, it made 470.9hp and 455 lb-ft on the dyno with a 750 DP but it has MPFI now, a little more expensive to pull off.
'70 Block and Crank, 0.040 over.
Edelbrock Heads, valve job (they were used), Comp Beehive springs and retainers
Custom pistons, (flat top w/reliefs, Racetec), 9.75:1 CR
K1 H-beam rods
Lunati 227/231 duration at 0.050, 0.530/0.530 lift, 110 LSA Hydraulic roller
Crane Gold Roller Rockers
Kevko oil pan with built in crank scraper
When dyno'd it had an Edelbrock Air Gap, currently has an Edelbrock Super Victor EFI
Currently has Megasquirt 3 Pro EFI with Coil Near Plug and GM LS D585 truck coils and a Holley 1000 cfm throttle body
I have a T56 magnum in the car, 3.23:1 rear end gears, the engine will pull a hill at 1400 rpm without problems and it pulls hard, I only turn it 6200 rpm max. I typically get about 14-16 mpg and that's almost always short trips. Great engine for a street car. Other than swapping the intake to do the EFI I've never messed with it since it was built in 2013. This was built to be a street engine over all.
I have a stock crank 340 build, it made 470.9hp and 455 lb-ft on the dyno with a 750 DP but it has MPFI now, a little more expensive to pull off.
'70 Block and Crank, 0.040 over.
Edelbrock Heads, valve job (they were used), Comp Beehive springs and retainers
Custom pistons, (flat top w/reliefs, Racetec), 9.75:1 CR
K1 H-beam rods
Lunati 227/231 duration at 0.050, 0.530/0.530 lift, 110 LSA Hydraulic roller
Crane Gold Roller Rockers
Kevko oil pan with built in crank scraper
When dyno'd it had an Edelbrock Air Gap, currently has an Edelbrock Super Victor EFI
Currently has Megasquirt 3 Pro EFI with Coil Near Plug and GM LS D585 truck coils and a Holley 1000 cfm throttle body
I have a T56 magnum in the car, 3.23:1 rear end gears, the engine will pull a hill at 1400 rpm without problems and it pulls hard, I only turn it 6200 rpm max. I typically get about 14-16 mpg and that's almost always short trips. Great engine for a street car. Other than swapping the intake to do the EFI I've never messed with it since it was built in 2013. This was built to be a street engine over all.
